INT 1A - DATEFIX - INSTALLATION CHECK AX = CCCCh BX = CCCCh CX = 0000h Return: CX = CCCCh if installed ES:BX -> original interrupt handler Program: DATEFIX is a public-domain TSR to correct the date on AT&T 6300 machines, where the realtime clock's calendar wraps after 1991 SeeAlso: AH=FEh,AH=FFh"AT&T"